"M 14" giant 3D model  
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All Forums >> Electric Aircraft Universe >> 3D Electric Flying! >> "M 14" giant 3D model
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"M 14" giant 3D model - 10/29/2003 4:37:21 AM   
Bill Mixon


 

Posts: 259
Joined: 8/24/2002
From: Kite, GA,
Status: offline 		Cool, an electric 3D forum.

Here is a picture of one of my latest 3D planes.
Spans just under 90"
approx 1600 sq" wing area
10 lbs +- ready to fly

Bill

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       Post #: 1

RE: "M 14" giant 3D model - 10/29/2003 5:43:33 PM   
bach939



Posts: 37
Joined: 6/6/2003
From: Libertyville, IL, USA
Status: offline 		What is your power setup?

(in reply to Bill Mixon)
       Post #: 2

RE: "M 14" giant 3D model - 10/30/2003 12:09:25 AM   
Bill Mixon


 

Posts: 259
Joined: 8/24/2002
From: Kite, GA,
Status: offline 		Oh, yea
Forgot the power system specs.

Hacker C50 Acro 12XL 6.7:1 drive.
APC 24 X 12 E prop
77 3p opto speed control
20 HRSC 2600 NIMH cells

< Message edited by Bill Mixon -- 10/30/2003 12:10:25 AM >

(in reply to bach939)
       Post #: 3

RE: "M 14" giant 3D model - 10/30/2003 10:30:40 AM   
Henke Torphammar



Posts: 569
Joined: 10/9/2002
From: Ljungby, SWEDEN
Status: offline 		Cool Bill!!!

do you know the amps? my 14XL pulls 62A from 28cells

_____________________________

/Henke
http://www.electric-airshow.com

(in reply to Bill Mixon)
       Post #: 4

RE: "M 14" giant 3D model - 10/30/2003 5:37:27 PM   
Bill Mixon


 

Posts: 259
Joined: 8/24/2002
From: Kite, GA,
Status: offline 		Hi, Henke

No, I don't
I haven't bought one of those nice watt meters yet so I'm not real sure.
According to my calculations though, figuring flight time-battery capacity..
I'm pulling about 20 amps at input required to hover, and max amperage in the low 50's.

Plane cruises around at 25% power and flies at a top speed of just under 60 mph. That's at full power in level flight.

Are you running the 24 X 12 on your setup?

Bill

(in reply to Henke Torphammar)
       Post #: 5

RE: "M 14" giant 3D model - 10/31/2003 9:47:56 AM   
Henke Torphammar



Posts: 569
Joined: 10/9/2002
From: Ljungby, SWEDEN
Status: offline 		60 is fast! really cool!

I run the 24x12 too. thinking 8S is enough (~28 round cells) no need to go for more then 2:1 thrust weight ratio

how does it compare to Gary´s XL?

_____________________________

/Henke
http://www.electric-airshow.com

(in reply to Bill Mixon)
       Post #: 6

RE: "M 14" giant 3D model - 11/1/2003 12:18:53 AM   
Bill Mixon


 

Posts: 259
Joined: 8/24/2002
From: Kite, GA,
Status: offline
quote:

how does it compare to Gary´s XL?


Almost identical in weight, size, probably fly similarly.
I do have a CG problem on the M 14 though, it's slightly nose heavy.
Also, I haven't pushed the M 14 through anything highG like blenders, parachutes, etc.. Im not sure about the structural integrity of the wings and would rather not find out what it takes to break them. So I have been flying it conservatively.
I hover it a lot, it does really good at the high alpha stuff. No wing rocking, and no flap mixing required.

Might be building a new set of wings for next year, so I can really see what it will do.

Bill

(in reply to Henke Torphammar)
       Post #: 7

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